If I were you, I would try to choose a rifle that would be an " All Around " good caliber for everything that you may want to hunt. It's Whitetail now, but who knows, 3 years down the road you may want to hunt Elk or Moose. I Personally would choose either a 7mm Magnum or a 300 Winchester magnum. They are both excellent deer cartridges, have lots of loading variables, and also are big enough for Elk out to 400 yards. Just my opinion.